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Strange-Particle Production by 1170-MeV/c pi- Mesons

Description: Production of {Lambda} + K{sup 0}, {Sigma}{sup 0} + K{sup 0}, and {Sigma}{sup -} + K{sup +} by 1170-MeV/c {pi}{sup -} mesons has been studied in the Lawrence Radiation Laboratory 72-inch hydrogen bubble chamber, Cross sections, angular distributions, and polarizations are presented. The polarization of the {Sigma}{sup 0} is determined at four center-of-mass angles and found to be small everywhere. Based on published results for the reaction {pi}{sup +} + p {yields} {Sigma}{sup +}, K{sup +}, a comparison of the polarizations of {Sigma}{sup +}, {Sigma}{sup -}, and {Sigma}{sup 0} is made from the charge-independence triangle. A conclusion is reached that the {Sigma}{sup -} polarization should be large, and that the {Sigma}{sup -} and {Sigma}{sup +} polarizations should be opposite in sign.
Date: May 27, 1963
Creator: Anderson, Jared Arnold
Partner: UNT Libraries Government Documents Department

I. THE THEORY OF ABERRATIONS OF QUADRUPOLE FOCUSING ARRAYS. II. ION OPTICAL DESIGN OF HIGH QUALITY EXTRACTED SYNCHROTRON BEAMS WITH APPLICATION TO THE BEVATRON

Description: In Part One they formulate in a general way the problem of analyzing and evaluating the aberrations of quadrupole magnet beam systems, and of characterizing the shapes and other properties of the beam envelopes in the neighborhood of foci. They consider all aberrations, including those due to misalignments and faulty construction, through third order in small parameters, for quadrupole beam systems. One result of this study is the development of analytic and numerical techniques for treating these aberrations, yielding useful expressions for the comparison of the aberrations of different beam systems. A second result of this study is a comprehensive digital computer program that determines the magnitude and nature of the aberrations of such beam systems. The code, using linear programming techniques, will adjust the parameters of a beam system to obtain specified optical properties and to reduce the magnitude of aberrations that limit the performance of that system. They examine numerically, in detail, the aberrations of two typical beam systems. In Part Two, they examine the problem of extracting the proton beam from a synchrotron of 'H' type magnet construction. They describe the optical studies that resulted in the design of an external beam from the Bevatron that is optimized with respect to linear, dispersive, and aberration properties and that uses beam elements of conservative design. The design of the beam is the result of the collaboration of many people representing several disciplines. They describe the digital computer programs developed to carry out detailed orbit studies which were required because of the existence of large second order aberrations in the beam.
Date: May 15, 1963
Creator: Meads Jr., Philip Francis
Partner: UNT Libraries Government Documents Department

The history of the keyed brasses

Description: This study examines what makes a keyed brass instruments, early keyed brass instruments,and examines keyed brass instruments of today.
Date: May 1963
Creator: Montgomery, Ralph W. (Ralph William)
Partner: UNT Libraries

An Experimental Investigation of Two-Phase, Two-Component Flow in a Horizontal, Converging-Diverging Nozzle

Description: A discussion is presented of an investigation of the flow characteristics in a horizontal, converging-diverging nozzle for a two-phase, air- water system. The primary consideration, to determine the effects of accelerating the liquid phase by the gaseous phase, was measured in terms of nozzle exit water velocity, exit slip ratio, and exit acceleration factor. A gamma-ray-attenuation technique was used to determine these values by determining the average cross-sectional void fraction, the ratio of gas volume to total volume, for the air-- water mixture. (B.O.G.)
Date: July 1, 1963
Creator: Vogrin, J. A., Jr.
Partner: UNT Libraries Government Documents Department

THERMOLUMINESCENCE SPECTRA AND ACTIVATION ENERGIES FOR AROMATIC AMINO ACIDS, TRYPSIN, AND SPORES OF BACILLUS MEGATERIUM

Description: The theory of thermoluminescence is reviewed. The spectral distribution of thermoluminescence and the activation energies associated with peaks of the glow curves were determined for samples of aromatic amino acids, trypsin, and spores of Bacillus megaterium irradiated by a Co/sup 60/ gamma source. All of the substances, except phenylalanine, exhibited a readily observable long-lived glow that persisted up to at least 2 hr following irradiation. Possible reaction mechanisms in the production of thermoluminescence in biological materials are discussed. (C.H.)
Date: June 21, 1963
Creator: Weinberg, C.J.; Carter, J.G.; Nelson, D.R. & Birkhoff, R.D.
Partner: UNT Libraries Government Documents Department

HIGH DENSITY SLAG CONCRETE

Description: Test results are presented that show that a strong concrete weighing approximately 185 lb/ft/sup 3/ can be made using water, waste lead slag, and Ciment Fondu. Feasibility, materials, mortar tests, concrete tests, and Ciment Fondu concretes are discussed. A 24-in.-thick concrete shield wall would have to be increased in thickness by 5 in. if slag concrete is used in place of barytes or magnetite concrete. On a pound-for-pound basis, the waste lead slag concrete materials were 30% cheaper than barytes and magnetite concrete materials. (M.C.G.)
Date: August 1, 1963
Creator: Northup, T.E.
Partner: UNT Libraries Government Documents Department

INVESTIGATION OF THE WETT-ABILITY OF VARIOUS PURE METALS AND ALLOYS ON BERYLLIUM

Description: Thesis submitted to University of Tennessee, Knoxville. Activities in a program to determine the wetting behavior of pure metals such as Au, Ag, Ge, Al, and Cu on solid Be are reported. Results of similar investigations of binary alloys such as Be--Ti, Be-Zr, and Be--Pd are also included. The contact angles of the molten metals on Be as a function of temperature, exposure time, and atmosphere were measured. The solid-liquid interfacial reactions occurring as a function of test temperature and atmosphere were investigated, and the liquid- vapor and internal surface tensions for those systems in which interfacial reactions did not appear to occur were calculated. (J.R.D.)
Date: June 13, 1963
Creator: Gilliland, R.G.
Partner: UNT Libraries Government Documents Department

EMISSION SPECTRA OF ELECTRON IRRADIATED METAL FOILS

Description: Thesis submitted to Univ. of Tennessee by L. C. Emerson. An experimental investigation of the visible and ultraviolet light emitted when a charged particle moves across a boundary between two media with different dielectric properties was carried out. The spectral distributions of the light from evaporated foils of copper, germanium, silver, tin, and antimony bombarded by a 1.5-microamp beam of electrons were measured as a function of electron energy between 25 and 100 kev. The analysis was carried out with a Seya-Namioka vacuum ultraviolet spectrometer, Glan-Foucault prism polarizer, and a quartz- window photomultiplier. Calibration of the optical system with a NBS tungsten filament lamp enabled the intensity measurements to be carried out on an absolute basis. The experimental results for light polarized parallel to the plane containing the photon and the electron were compared with the calculated intensity of transftion radiation, and in general the agreement was found to be excellent. The component of the photon intensity polarized perpendicular to this plane was compared with the calculated intensity of the optical portion of the bremsstrahlung spectrum. The predicted dependence on electron energy, photon wavelength, and foil thickness was observed although the measured yield was higher than that predicted by theory. The possibility of contributions from Cherenkov radiation and plasma radiation is also considered, but it is shown that it would be unlikely for these radiations to be observed under the experimental conditions of this study. (auth)
Date: August 1, 1963
Creator: Emerson, L.C.; Arakawa, E.T.; Ritchie, R.H. & Birkhoff, R.D.
Partner: UNT Libraries Government Documents Department

Predicting Achievement in a Graduate School of Education

Description: The purpose of this study was to determine the relationships between selected criteria and academic achievement in graduate studies leading to certain master's degrees in education at North Texas State University. The major areas in education which were included were Elementary Education, Elementary School Administration and Supervision, Secondary Education, Secondary School Administration and Supervision, and Physical Education. Graduate grade-point average was used as the criterion for academic achievement.
Date: June 1963
Creator: Hughes, Billie Edward, 1927-
Partner: UNT Libraries

The Teacher as a Character in American Drama

Description: The purpose of this dissertation is to investigate the teacher as represented through characters in successful American commercial drama.
Date: August 1963
Creator: Crow, Porter Jackson, 1922-
Partner: UNT Libraries

Relationships between Patient Motivation for Physical Rehabilitiation and Subscales on the Edwards Personal Preference Schedule

Description: This study was concerned with the relationship between patient motivation for treatment in three of the various therapy sections of the Physical Medicine and Rehabilitation Service of the Veterans Administration General Medical and Surgical Hospital, Long Beach, California, and needs as measured by the Edwards Personal Preference Schedule. Of the six therapies under the direction of the Physical Medicine and Rehabilitation Service consideration was given to the following: Occupational Therapy (OT), Physical Therapy (PT), and Corrective Therapy (CT)
Date: August 1963
Creator: Gilbert, Algie Stephen, 1925-
Partner: UNT Libraries

A Comparison of Two Methods of Listening and Reading Training in an Eighth Grade Language Arts Program

Description: The purpose of this study was to compare the effects of two methods of listening and reading instruction when used in the language arts programs at the eighth-grade level as related to listening, reading, study skills, and English achievement. Two groups were studied; one was an experimental group receiving programed material present by the Listen and Read Program and a control group receiving instruction through the regular classroom program.
Date: August 1963
Creator: Kraner, Robert Eugene, 1933-
Partner: UNT Libraries

A Description, Analysis and Evaluation of Three Approaches to the Teaching of Reading

Description: The problem is to describe, analyze, and evaluate three approaches to the teaching of reading in grades one through six in selected school districts in a California county. The three approaches are 1) the Basic Reading Approach, 2) the Individualized Reading Approach, and 3) the Language Experience Approach to reading.
Date: August 1963
Creator: Lane, Kenneth Boyd, 1923-
Partner: UNT Libraries

Personal Characteristics in Secondary School Social Studies Student Teachers as Related to Certain Measures of Potential Teaching Behavior

Description: The purpose of this study was to search for relationships of certain personal characteristics (authoritarianism, philosophy of social education, and instructional preferences) of a representative group of social studies student teachers to measures respectively of a) their classroom behavioral traits, b) their classroom teaching activities, and c) their pupils' classroom behavior.
Date: August 1963
Creator: Liu, Shia-Ling, 1922-
Partner: UNT Libraries

The Relationship between Personality Integration and Creativity

Description: This study has two major purposes. The first of these is to formulate a theoretical model which 1) provides an ontological and psychological framework for the concept of creativity, and 2) if non-contradictory empirical data are produced, provides a philosophic and psychological guide to effective action relevant to the development of creative skill. The second major purpose is to formulate and test a problem and hypotheses which would provide some empirical evidence of the explanatory adequacy of the model, and outside the scope of theoretical material, to produce data of general interest to any reader regardless of his theoretical orientation.
Date: August 1963
Creator: Luker, William Allen
Partner: UNT Libraries

Some Characteristics of College Freshmen According to Sex and Ethnic Group and the Relationship of these Characteristics to Academic Achievement

Description: The purpose of the present study was to determine if differences exist between selected groups of male and female Anglo-American and Latin-American students with respect to scholastic aptitude as measured by the American College Test, temperament traits as measured by the Guilford-Zimmerman Temperament Survey, and beliefs in traditional values as measured by the Inventory of Beliefs.
Date: August 1963
Creator: Vaughan, George Ellis
Partner: UNT Libraries